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#include <mpi.h>
#include <stdio.h>
int main(int argc, char *argv[])
{
int size, rank, len;
char name[MPI_MAX_PROCESSOR_NAME];
#if defined(MPI_VERSION) && (MPI_VERSION >= 2)
int provided;
MPI_Init_thread(&argc, &argv, MPI_THREAD_MULTIPLE, &provided);
#else
MPI_Init(&argc, &argv);
#endif
MPI_Comm_size(MPI_COMM_WORLD, &size);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Get_processor_name(name, &len);
printf("Hello, World! I am process %d of %d on %s.\n", rank, size, name);
MPI_Finalize();
return 0;
}
/*
* Local Variables:
* mode: C
* c-basic-offset: 2
* indent-tabs-mode: nil
* End:
*/
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